mc68hc05pv8a Freescale Semiconductor, Inc, mc68hc05pv8a Datasheet - Page 69

• Manufacturer Part Number: mc68hc05pv8a
• Description: Mc68hc05pv8a Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

MC68HC(8)05PV8/A — Rev. 1.9
RESTORE REGISTERS
FROM STACK:
CCR,A,X,PC
Figure 4-1 Interrupt Processing Flowchart
Y
Freescale Semiconductor, Inc.
For More Information On This Product,
FETCH NEXT INSTRUCTION
Y
LOW/HIGH VOLT, SC
8 BIT CORE TIMER
CONTACT SENSE
INSTRUCTION
INSTRUCTION
INSTRUCTION
INTERRUPT?
16 BIT TIMER
INTERRUPT?
INTERRUPT?
INTERRUPT?
INTERRUPT?
HIGH TEMP
PORT C0–4
WIRED OR
INTERNAL
INTERNAL
EXECUTE
FROM
RESET
PORT A
IN CCR
SET?
IRQ?
I-BIT
SWI
RTI
?
?
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N
N
N
N
N
N
N
N
N
Interrupts
Y
Y
Y
Y
Y
Y
Y
CLEAR IRQ
REQUEST
LATCH
Load PC from:
SWI:
IRQ:
Core Timer:
16-Bit Timer:
T, V, SC:
PTA:
Contact Sense: $3FF0 – $3FF1
CC REGISTER
PC,X,A,CCR
SET I-BIT IN
STACK
$3FFC – $3FFD
$3FFA – $3FFB
$3FF8 – $3FF9
$3FF6 – $3FF7
$3FF4 – $3FF5
$3FF2 – $3FF3
CPU Interrupt Processing
Technical Data
Interrupts